BACKGROUND Exposure of biological subjects to electromagnetic fields with a high frequency is associated with temperature elevation. In our recent studies, we reported that non-invasive radiofrequency (RF) treatment at 13.56 MHz with the field ranging from 1 KeV to 20 KeV/m2 inhibits tumor progression in animals with abdominal tumor xenografts and enhances the anticancer effect of chemotherapy....

OBJECTIVES This paper reviews the effects of elevated maternal temperature on embryo and foetal development in experimental animals and in humans. CONCLUSIONS Hyperthermia during pregnancy can cause embryonic death, abortion, growth retardation and developmental defects. Processes critical to embryonic development, such as cell proliferation, migration, differentiation and programmed cell dea...

Great Basin bristlecone pine (Pinus longaeva) at 3 sites in western North America near the upper elevation limit of tree growth showed ring growth in the second half of the 20th century that was greater than during any other 50-year period in the last 3,700 years. The accelerated growth is suggestive of an environmental change unprecedented in millennia. The high growth is not overestimated bec...

Predicting habitat suitability under climate change is vital to conserving biodiversity. However, current species distribution models rely on coarse scale climate data, whereas fine scale microclimate data may be necessary to assess habitat suitability and generate predictive models. Here, we evaluate disparities between temperature data at the coarse scale from weather stations versus fine-sca...

A central challenge in ecology and biogeography is to determine the extent to which physiological constraints govern the geographic ranges of species along environmental gradients. This study tests the hypothesis that temperature and desiccation tolerance are associated with the elevational ranges of 12 ground beetle species (genus Nebria) occurring on Mt. Rainier, Washington, U.S.A. Species fr...

Elevation of temperature from 20 to 30 °C, increased the pulmonary ventilation and pulmonary oxygen consumption (from 0-18 to 0-43 ml Oj.kg-. min). The total CO2 excretion also rose, but branchial ventilation and branchial oxygen consumption did not change significantly. The blood pH dropped quickly when temperature was elevated, with a slope (dpH/dT°) of -0-015, but the OH~/H+ ratio did not ch...

Transcription downstream of the polyadenylation site was studied in the Drosophila hsp70 gene, whose high level of transcription in response to temperature elevation facilitates detection of rare and possibly short-lived transcripts. Transcription downstream of the polyadenylation site was detected both in cultured cells and in intact animals. Even shortly after temperature elevation the extend...

The monitoring and prediction of biodiversity and environmental changes is constrained by the availability of accurate and spatially contiguous climatic variables at fine temporal and spatial grains. In this study, we evaluate best practices for generating gridded, one-kilometer resolution, daily maximum air temperature surfaces in a regional context, the state of Oregon, USA. Covariates used i...

the dominant agricultural land uses are included of wheat farming in the kermanshah providence in the northwest of iran. the objective of this paper is analyzing of topoclimatic zonning of the wheat dry farming areas based on overlying the climatic and topographic character tics. to achieve the exact date of stages of rain-fed wheat growing in different areas of the province, the degree-days te...

The aim of this study was to determine whether the teratogenic effects of radiofrequency (RF) radiation are due to induced hyperthermia at 27.12 MHz. This was achieved by controlling the degree of temperature change and the duration of the elevation at this RF frequency. Pregnant Sprague-Dawley rats, at 9 days gestation were either sham-irradiated or irradiated with continuous shortwave radiati...